tag:blogger.com,1999:blog-7315236707728759521.post6681141879879332268..comments2024-03-28T19:02:22.210-06:00Comments on Dispatches From Turtle Island: The MiniBoone AnomalyAndrew Oh-Willekehttp://www.blogger.com/profile/02537151821869153861noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-7315236707728759521.post-18329952650680601332018-06-06T19:11:27.815-06:002018-06-06T19:11:27.815-06:00"Basically, it is seeing more electron neutri..."Basically, it is seeing more electron neutrinos and electron anti-neutrinos than expected; twice the rate of previously reported results."<br /><br />They collected twice as much data, the signal rate is the same.<br /><br />"FIG. 12: The neutrino event rates versus time over the 15 year MiniBooNE running period, including neutrino- mode, antineutrino-mode, and beam-dump-mode data. The neutrino-mode event rate of 1 event per 1015 POT has been stable to < 2% over 15 years."Tom Andersenhttps://www.blogger.com/profile/17562906116020498110noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-24627101524097773112018-06-06T00:10:59.500-06:002018-06-06T00:10:59.500-06:00More on the MiniBooNE anomaly here: http://www.phy...More on the MiniBooNE anomaly here: http://www.physicsforums.com/threads/miniboone-results-at-6-1-sigma-potential-evidence-for-sterile-neutrinos.948730/andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-60691813729636433972018-06-05T16:56:26.621-06:002018-06-05T16:56:26.621-06:00Hi Graham. Good to see you here. This one will be ...Hi Graham. Good to see you here. This one will be tricky for the standard paradigm, and of course we have a lot of work to do on our cosmological Higgs mechanism, but the data seems to be working out nicely. Anonymoushttps://www.blogger.com/profile/17110820425713596408noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-42501764712740815642018-06-01T13:41:30.466-06:002018-06-01T13:41:30.466-06:00"Those combined excesses of 6.1 sigma represe..."Those combined excesses of 6.1 sigma represent a ca. 1 in 10^9 chance of being false, Andrew."<br /><br />By that reasoning the superluminal neutrinos detected by OPERA were true too. <br /><br />Estimates of statistical error are reasonably accurate (although they make an assumption of a Gaussian distribution of error which past experience shows does not accurately characterize actual statistical errors in many HEP experiments). <br /><br />Estimates of systemic error only consider the sources of systemic error that are quantified by the investigators so those estimates are only accurate if you assume that nobody missed a source of systemic error and accurately characterized the situation theoretically, and by definition miss the theoretical and systemic error sources that the authors didn't think about. When an extraordinary claim is made that is contested by many other investigations that did not reach the same result, the contradiction of two claims that we have in this case can't be evaluated in a vacuum.<br /><br />This is particularly true when the experiment itself is self-contradictory, reporting one result early on and a different one later in the experiment. This is a red flag for a possible failure to identify a source of systemic error.<br /><br />There are a great many ways you could tweak the theory to match this result, but figuring out how to do that without contradicting other contrary reactor neutrino data which is copious is the problem.andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-40108720819409498392018-06-01T13:18:03.671-06:002018-06-01T13:18:03.671-06:00"For my money, I expect that the MiniBooNE an..."For my money, I expect that the MiniBooNE anomaly will be resolved as well..."<br />Those combined excesses of 6.1 sigma represent a ca. 1 in 10^9 chance of being false, Andrew.<br /><br />"...twice the rate of previously reported results."<br /><br />It's fascinating. Actually a factor 2 increase is interesting. <br />Perhaps the easiest test would be cosmological, to re-analyse<br /> the cmb continuum profile.<br /><br />That "4th sterile" species may masquerade as a doubling of the 3 neutrino species. That a kack handed Left hand chiral standard model also has an extant Right handed representation; I'm left handed too. This may be due to a possible excess radiation profile peaking at 0.89 Kelvin (0.000383eV)on the 2.725Kelvin continuum that may have been subtracted as ir radiation from "dust".<br /><br />Yes- it is hot news; we may live in exciting times but these particle physics experiments take decades of work.Graham Dungworthhttps://www.blogger.com/profile/18355209024912564624noreply@blogger.com